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Chin. Phys. B, 2021, Vol. 30(2): 027301    DOI: 10.1088/1674-1056/abc0dd
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Modeling, simulations, and optimizations of gallium oxide on gallium-nitride Schottky barrier diodes

Tao Fang(房涛)1, Ling-Qi Li(李灵琪)1, Guang-Rui Xia(夏光睿)1,2,†, and Hong-Yu Yu(于洪宇)1,
1 School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China; 2 Department of Materials Engineering, the University of British Columbia, Vancouver, British Columbia, V6T1Z4, Canada
Abstract  With technology computer-aided design (TCAD) simulation software, we design a new structure of gallium oxide on gallium-nitride Schottky barrier diode (SBD). The parameters of gallium oxide are defined as new material parameters in the material library, and the SBD turn-on and breakdown behavior are simulated. The simulation results reveal that this new structure has a larger turn-on current than Ga2O3 SBD and a larger breakdown voltage than GaN SBD. Also, to solve the lattice mismatch problem in the real epitaxy, we add a ZnO layer as a transition layer. The simulations show that the device still has good properties after adding this layer.
Keywords:  technology computer-aided design (TCAD)      gallium oxide (Ga2O3)      gallium nitride (GaN)      Schottky barrier diode (SBD)  
Published:  26 January 2021
PACS:  73.40.Kp (III-V semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions)  
  64.70.kg (Semiconductors)  
  61.72.uj (III-V and II-VI semiconductors)  
  85.30.-z (Semiconductor devices)  
Corresponding Authors:  Corresponding author. E-mail: gxia@mail.ubc.ca Corresponding author. E-mail: yuhy@sustech.edu.cn   

Cite this article: 

Tao Fang(房涛), Ling-Qi Li(李灵琪), Guang-Rui Xia(夏光睿), and Hong-Yu Yu(于洪宇) Modeling, simulations, and optimizations of gallium oxide on gallium-nitride Schottky barrier diodes 2021 Chin. Phys. B 30 027301

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